1. Princess Margaret Cancer Centre, University Health Network, 101 College St, Toronto, ON M5G 0A3, Canada
2. Structural Genomics Consortium (SGC), University of Toronto, 101 College St., Suite 700, Toronto, ON, M5G 1L7, Canada
3. Sunnybrook Research Institute, 2075 Bayview Ave. Toronto, ON, M4N 3M5, Canada
4. Department of Medical Biophysics, University of Toronto, 101 College St, Toronto, ON M5G 1L7, Canada
5. Department of Physics, Chemistry, and Biology, Linköping University, SE-581 83 Linköping, Sweden